Tag:airport

  • Security monitoring system of GPS time synchronization device (NTP clock server)

    Time:2020-11-28

    Security monitoring system of GPS time synchronization device (NTP clock server) Security monitoring system of GPS time synchronization device (NTP clock server) Beijing Zhun electronic technology official micro enterprise — ahjzsz Construction background With the continuous development of China’s economy, the rapid development of public transport, the continuous improvement of people’s living standards, more and […]

  • Conditional random field

    Time:2020-9-27

    Conditional random field (CRF) is a conditional probability distribution model of a set of input random variables and another group of output random variablesSuppose that the output random variables constitute Markov random fields (probabilistic undirected graph model)。Definition of conditional random fieldsLet $x $and $y $be random variables, and $p (y|x) $be the conditional probability distribution […]

  • Notes on hanlp’s introduction to natural language processing — 6. Conditional random fields and sequence tagging

    Time:2020-8-25

    The notes are reproduced in GitHub project:https://github.com/NLP-LOVE/Introduction-NLP 6. Conditional random fields and sequence labeling This chapter introduces a new sequential tagging model conditional random field. This model belongs to the same family of structured learning as perceptron, but its performance is more powerful than perceptron. In order to clarify the origin and development of the […]